Electronic keyboard musical instrument



FIG. 1 is a top plan view of an electronic keyboard musical instrument, showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a rear elevational view thereof; and,

FIG. 5 is a right side elevational view thereof; the opposite side being a mirror image thereof. 

The ornamental design for an electronic keyboard musical instrument, as shown and described. 